Product classification
HS code for Rigid PP tubing: 3917.22
Plastics, tubes, pipes and hoses thereof, rigid, of polymers of propylene.
Classification of rigid PP tubing under HS 3917.22
Rigid PP tubing is classified under HS code 3917.22. This classification follows the General Rules for the Interpretation of the Harmonized System (GRI), specifically GRI 1 and 6. Heading 3917 covers plastic tubes and pipes. Within this heading, the code 3917.22 is reserved for rigid products made from polymers of propylene. Polypropylene is a thermoplastic polymer used in a wide variety of applications, including chemical processing and hot water distribution. In the context of piping, PP is valued for its chemical resistance and thermal stability. To qualify for this code, the tubing must meet the definition of "rigid" provided in the Chapter 39 notes, meaning it cannot be easily coiled or bent without structural failure or permanent deformation at room temperature. The classification is determined by the predominant polymer by weight; if the tube is a copolymer where propylene is the main component, 3917.22 remains the correct designation.
- Covers
- Polypropylene Random Copolymer (PP-R) rigid pipes
- Rigid PP tubes for chemical transport
- Polypropylene Homopolymer (PP-H) industrial piping
- Rigid PP laboratory drainage tubes
- High-temperature resistant PP rigid tubing
- Also under 3917.22
- Aquatherm PP-R pipes
- Georg Fischer PP-H piping
- Wefatherm PP-R systems
- IPEX PP industrial piping
Codes often confused with 3917.22
Common mistake. The most common misclassification occurs with HS code 3917.21 (PE tubing) or 3917.23 (PVC tubing) when the specific polymer type is not clearly identified on shipping documents. Furthermore, if the PP tubing is flexible enough to be coiled, it should be classified under 3917.32 or 3917.39. It is also important to distinguish these from 3917.10, which covers artificial guts (sausage casings) of hardened protein or cellulosic materials, though this is less common in industrial contexts.
Top exporters and importers of HS 391722 (the code used for rigid PP tubing), 2025
In 2025, the largest exporter of HS 391722 (the code used for rigid PP tubing) in UN Comtrade data was Germany, with 15% of world exports; the largest importer in UN Comtrade data was the United States, with 7.4% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 391722, not only rigid PP tubing.
Top exporters 2025 · share of world exports
- 1 Germany $195M 15% of world exports
- 2 China $140M 10% of world exports
- 3 Türkiye $127M 9.4% of world exports
World total: $1.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $97M 7.4% of world imports
- 2 Mali* ~$83M 6.3% of world imports · partner records ↗
- 3 Germany $79M 6.0% of world imports
World total: $1.3B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for rigid PP tubing
Brazil splits HS 3917.22 into 2 NCM codes. Pick the one that matches your product:
- 3917.22.10Rigid propylene polymer hex tubes, bore under 6 mm
- 3917.22.90Other rigid tubes of propylene polymers
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about rigid PP tubing
What is the HS code for Rigid PP tubing?
The HS code for Rigid PP tubing is 391722 (Plastics; tubes, pipes and hoses thereof, rigid, of polymers of propylene). Rigid tubing made from polymers of propylene is classified under HS code 3917.22.
How do I classify Rigid PP tubing for customs?
Rigid PP tubing is classified under HS code 391722 — Plastics; tubes, pipes and hoses thereof, rigid, of polymers of propylene. This is a 6-digit subheading level code.
Can PP-R pipes for plumbing use this code?
Yes, as long as the PP-R pipes are rigid and not reinforced with other materials like metal or glass fiber, they fall under 3917.22.
Which countries are the top exporters of rigid PP tubing (HS 391722)?
In 2025, the top exporters of HS 391722 (the code used for rigid PP tubing) in UN Comtrade data were Germany ($195M, 15% of world exports), China ($140M) and Türkiye ($127M). World exports came to about $1.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of rigid PP tubing (HS 391722)?
In 2025, the top importers of HS 391722 (the code used for rigid PP tubing) in UN Comtrade data were the United States ($97M, 7.4% of world imports), Mali (about $83M) and Germany ($79M). World imports came to about $1.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Rigid PP tubing the same in all countries?
The base HS code 391722 for Rigid PP tubing is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for rigid PP tubing in Brazil?
Brazil splits HS 391722 into 2 NCM codes, so the right one for rigid PP tubing depends on the product's details: 3917.22.10 (Rigid propylene polymer hex tubes, bore under 6 mm), 3917.22.90 (Other rigid tubes of propylene polymers).